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English Pages [16] Year 2021
u
is for urchin
red sea urchin
Pacific sand dollar
pea urchin
sea potato
long-spined sea urchin
purple sea urchin
There are lots of different types of sea urchins.
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underwater
All sea urchins live in the ocean.
sea otter
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is for
ultra-spiky
Sharp spines protect sea urchins from predators.
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underneath Underneath an urchin’s spines is a hard shell, called a test.
u
is for unite
carrier crab
fire urchin
Some urchins and crabs team up to travel around the ocean.
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unusual Urchins walk using lots of strange tube feet.
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upside down A sea urchin’s mouth is hidden at the bottom of its shell.
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unstoppable
Urchins chomp all the seaweed they can find.
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urchin family feather star
brittle star
sea cucumber
starfish sea lily
Sea urchins are related to many other sea creatures.